package com.xingfudazi.framework.config;

import com.xingfudazi.framework.config.properties.PermitAllUrlProperties;
import com.xingfudazi.framework.security.context.CustomizeNoAuthHandler;
import com.xingfudazi.framework.security.filter.JwtAuthenticationTokenFilter;
import com.xingfudazi.framework.security.handle.AuthenticationEntryPointImpl;
import com.xingfudazi.framework.security.handle.LogoutSuccessHandlerImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;

/**
 * spring security配置
 *
 * @author xingfudazi
 */
// EnableGlobalMethodSecurity 表示开启spring security的注解根据权限和角色过滤
// @Secured({"ROLE_normal","ROLE_admin"})
// @PreAuthorize("hasRole('ROLE_管理员')")
// @PreAuthorize("hasAnyAuthority('menu:system')")
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
@EnableWebSecurity
public class SecurityConfig {
    /**
     * 自定义用户认证逻辑
     */
    @Autowired
    private UserDetailsService userDetailsService;

    /**
     * 认证失败处理类
     */
    @Autowired
    private AuthenticationEntryPointImpl unauthorizedHandler;

    /**
     * 退出处理类
     */
    @Autowired
    private LogoutSuccessHandlerImpl logoutSuccessHandler;

    /**
     * token认证过滤器
     */
    @Autowired
    private JwtAuthenticationTokenFilter authenticationTokenFilter;

    /**
     * 跨域过滤器
     */
    @Autowired
    private CorsFilter corsFilter;

    /**
     * 允许匿名访问的地址
     */
    @Autowired
    private PermitAllUrlProperties permitAllUrlProperties;


    @Autowired
    private AuthenticationConfiguration authenticationConfiguration;

    @Bean
    public AuthenticationManager authenticationManager() throws Exception {
        AuthenticationManager authenticationManager = authenticationConfiguration.getAuthenticationManager();
        return authenticationManager;
    }


    /**
     * 配置哪些请求不拦截， 可以单独配置， 为空配置起来会报错
     */
   // @Bean
   // public WebSecurityCustomizer webSecurityCustomizer() {
   //     return (web) -> web.ignoring().antMatchers("xxx-xxx");
   // }


    /**
     * anyRequest          |   匹配所有请求路径
     * access              |   SpringEl表达式结果为true时可以访问
     * anonymous           |   匿名可以访问
     * denyAll             |   用户不能访问
     * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
     * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
     * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
     * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
     * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
     * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
     * permitAll           |   用户可以任意访问
     * rememberMe          |   允许通过remember-me登录的用户访问
     * authenticated       |   用户登录后可访问
     */
    @Bean
    public SecurityFilterChain filterChain(HttpSecurity httpSecurity) throws Exception {
        // 注解标记允许匿名访问的url
        ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry registry = httpSecurity.authorizeRequests();
        permitAllUrlProperties.getUrls().forEach(url -> registry.antMatchers(url).permitAll());

        httpSecurity
                // CSRF禁用，因为不使用session
                .csrf().disable()
                // 禁用HTTP响应标头
                .headers().cacheControl().disable().and()
                // 认证失败处理类, AccessDeniedException再有全局异常处理器的情况下会失效
                .exceptionHandling().accessDeniedHandler(new CustomizeNoAuthHandler()).authenticationEntryPoint(unauthorizedHandler).and()
                // 基于token，所以不需要session、指定之后SecurityContextPersistenceFilter过滤器将不起作用，需要我们自己将
                // 认证信息放置到 SecurityContextHolder.*getContext*()）
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
                // 过滤请求
                .authorizeRequests()
                // 对于登录login 注册register 验证码captchaImage 允许匿名访问
                .antMatchers("/login", "/register", "/captchaImage","/wechat/auth/login","/wechat/auth/tempRegister","/wechat/auth/register", "/app/act/list").permitAll()
                // 静态资源，可匿名访问
                .antMatchers(HttpMethod.GET, "/", "/*.html", "/**/*.html", "/**/*.css", "/**/*.js", "/profile/**","/**/*.jar").permitAll()
                .antMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**", "/ws/**", "/bc/install/**","/oauth/**").permitAll()
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated()
                .and()
                .headers().frameOptions().disable();

        // 可以指定一个推出的执行期、也可以按照下面那么指定
            /*  .addLogoutHandler(new
            TokenLogoutHandler(tokenManager,redisTemplate)).and()*/

        // 添加Logout filter
        httpSecurity.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
        // 添加JWT filter // 这边看到有继承UsernamePasswordAuthenticationFilter的
        httpSecurity.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
        // 添加CORS filter
        // cors跨域filter需要在最前面
        httpSecurity.addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class);
        httpSecurity.addFilterBefore(corsFilter, LogoutFilter.class);
        return httpSecurity.build();
    }

    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }
}
